The under-vehicle anti-stash imaging system is a vehicle security inspection system that integrates automatic vehicle detection and image acquisition, display, splicing, snapshot summary, comparison alarm, and automatic environmental control of the vehicle chassis. The system can effectively prevent bombs, weapons, bio-hazardous materials, dangerous people from entering and leaving important safety protection places such as government agencies, military management, bank warehouses, stations and wharves hidden under the car; prevent dangerous goods such as drugs, guns and ammunition, illegal Smuggled goods and even suspicious persons pass through customs and border checkpoints to prevent detainees from escaping from prisons, labor camps, detention centers, and drug rehabilitation centers.